Data/hora: 10/06/2024 06:20:51

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Production of 2,3-Butanediol from Sucrose by Klebsiella pneumoniae NRRL B199 in Batch and Fed-Batch Reactors	
Autores: 	Silveira,Mauricio M.; Berbert-Molina,M.; Prata,A. M. R.; Schmidell,W.	
Data: 	1998-01-01	
Ano: 	1998	
Palavras-chave: 	Klebsiella pneumoniae 2; 3-butanediol/batch process fed-batch process.	
Resumo: 	In batch mode, Klebsiella pneumoniae growth and 2,3-butanediol/acetoin formation are increasingly inhibited by initial sucrose concentrations (S0) over 60 g/L. At non inhibitory conditions, a maximum sucrose consumption rate of 1,5 g/L/h was measured. With S0=204 g/L however, this rate decreased to 0.15 g/L/h. K. pneumoniae fermented 204 g/L sucrose to produce 84.3 g/L of a mixture 2,3-butanediol/acetoin with a yield of 0.41 g/g and a productivity of 1.06 g/L/h. Higher oxygen transfer rates improved the overall process rate but the product yield was reduced. Avoiding substrate inhibition, by performing the fermentation in fed-batch mode, a final 2,3-butanediol/acetoin concentration of 80.0 g/L was achieved. In this case, a productivity of 2.63 g/L/h and a product yield of 0.37 g/g were calculated.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000300009	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89131998000300009	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.41 n.3 1998	
Fonte: 	info:eu-repo/semantics/openAccess